JP2003152372A - Air duct - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that several kinds of air ducts mounted among subracks in a communicating apparatus or the like are required since the air ducts have to be adaptable to the subracks having different depth dimensions. SOLUTION: An air duct 10 is composed of a front panel 11, a back panel 13 having a sliding shaft 15, left and right side plates 12 which are fixed to the front panel 11, have bearing sections for fitting the sliding shaft 15, and to which the back panel 13 is rotatably connected by the sliding shaft 15 and bearing sections, and which is provided with rotary slide grooves 16 for drawing an arc with the bearing sections as a center linearly symmetrically, and blocking plate 14 for blocking a clearance that is formed when rotating and moving the back panel 13 with the sliding shaft 15 as the center, thus allowing one kind of the air duct 10 to be adaptable subracks.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air duct mounted between subracks of a communication device or the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a communication device or the like mounted on a rack 2 in which a fan 1 is installed uses a fan 1 to generate an air flow A in order to cool a plurality of subracks 3. However, air leakage B between the subrack 3
Since C occurs, it is necessary to prevent it.

FIG. 7 shows a conventional example in which an air duct 4 is provided between the subracks 3 in order to prevent such air leakage.

FIG. 8 is a view showing a mounted state of a conventional air duct.

(A) is a subrack 31 having the same depth dimension.
When the air duct 41 is mounted in between, (b) and (c) are for subrack with different depth dimensions, (b) is for subrack 32 with smaller depth dimension, and (c) is for lower depth. The case of the subrack 32 having a small size is shown.

In the cases of (b) and (c), it is necessary to install the air ducts 42 and 43 provided with the oblique adjusting plate 5 in order to adjust the depth dimensions of the upper and lower stages.

[0007]

However, in the conventional structure, it is necessary to prepare several types of air ducts depending on the combination of the depth dimensions of the subrack, which causes a problem of cost increase.

If not all subrack are installed at the beginning of installation of the communication device and the subrack is added after a certain period of time, it is necessary to replace the air duct depending on the depth of the additional subrack. There was a problem that the number of man-hours increased.

[0009]

In order to solve the above-mentioned problems, the present invention relates to a front panel and an air duct mounted between the subracks, which is fixed to the front panel and which rotates in an arc around the bearing portion. The left and right side plates with vertically symmetrical slide grooves, the back panel having a sliding shaft that is rotatably connected to the left and right side plates and fitted into the bearing portion, and the back panel were moved around the bearing portion. It is provided with a closing means for closing a gap generated at the time.

[0010]

1 is a perspective view showing a first embodiment of the present invention, and FIG. 2 is a detailed view thereof.

The air duct 10 is formed in the shape of a quadrangular cylinder and is composed of a front panel 11, left and right side plates 12, a back panel 13 and a closing plate 14.

The air duct 10 is made of sheet metal such as iron, stainless steel, aluminum, etc., the front panel 11 and the left and right side plates 12 are fixed by welding or screwing, and the left and right side plates 12 and the back panel 13 are rotationally moved as described later. Connected as possible.

On the side plate 12, as shown in FIG.
The other bearing portion 17 that draws an arc around one bearing portion 17
The continuous rotary slide groove 16 is vertically symmetrical. Further, the side panel 12 is provided with a back panel 13 having a bearing portion 1.
Blocking plates 14 that are blocking means for blocking a gap generated when the lens 7 is rotated about 7 are vertically symmetrically installed.

The closing plate 14 is formed of a metal plate similar to the air duct 10, and as shown in FIG.
Is welded to the side plate 12 on the extension line F of the back panel 13 when it is rotated and vertically moved.

The back panel 13 is formed by sheet metal working, and sliding shafts 15 which are fitted into bearings 17 are provided at upper and lower portions at the connecting portions with the side plates 12 on both sides. The back panel 13 is rotatably connected to the side plate 12 by the sliding shaft 15 and the bearing portion 17.

As shown in FIG. 2 (b), upper and lower slide grooves 18 in opposite directions are formed at both ends of the rotary slide groove 16 of the side plate 12, and the rotary slide groove including the upper and lower slide grooves 18 is formed. 16 are provided symmetrically in the vertical direction.

As shown in FIG. 2B, when the back panel 13 is rotated around the upper and lower bearings 17 using the rotary slide groove 16 in order to adjust the depth dimension of the subrack, , A gap D is formed in the upper part, and a gap E is formed in the lower part.

The vertical slide groove 18 is provided to close the gap D, and the rear surface panel 13 is shifted upward using the vertical slide groove 18 as shown by the broken line in FIG. Can be closed.

Further, the gap E can be moved by rotation and further closed by the vertical slide groove 18 by the closing plate 14 installed on the extension line F of the back panel 13 when it moves upward here. In this case, it goes without saying that the back panel 13 moves upward and the gap increased further is closed at the same time.

FIG. 3 is a side view showing the mounted state of the first embodiment.

(A) Subrack 31 having the same depth dimension
When the air duct 10 according to the first embodiment is mounted in between,
(B) and (c) are for subrack with different depth dimensions, and (b) is a subrack 32 with a smaller depth dimension at the top.
In the case of (3), (c) shows the case of the subrack 32 having a smaller depth dimension in the lower stage, and both of them are the same air duct 10.
Is installed.

The rear panel 13 of the air duct 10 is provided with a sliding shaft 15 which fits into the bearing portion 17 as shown in FIG. 2, and the rear panel 1 as shown in FIG. 3 (c).
3 is connected to the side plate 12 by a sliding shaft 15 via a rotary slide groove 16.

Therefore, the other sliding shaft 15 moves around the one sliding shaft 15 in the rotary slide groove 16, and the back panel 13 can be rotationally moved.

In the case of (a), the back panel 13 is left in a vertical position.

In the case of (b), the back panel 13 is rotationally moved around the lower sliding shaft 15, and in the case of (c), the back panel 13 is rotationally moved around the upper sliding shaft 15. Then, the back panel 13 is shifted up or down and the sliding shaft 15 is fitted into the vertical slide groove 18 to fix the back panel 13 to the side plate 12.

If the sliding shaft 15 is not sufficiently fixed by simply fitting it into the vertical slide groove 18, the sliding shaft 15 may be fixed by another screw.

By doing so, even when the depth dimensions of the upper and lower subracks 31, 32 are different,
Air leakage can be prevented by using the same air duct 10 and rotating the back panel 13 for rotation.

As described above, according to the first embodiment, the rotary slide groove 16 and the vertical slide groove 1 are formed in the left and right side plates 12.
8 and the closing plate 14 are provided, and the back panel 13 is rotationally moved, so that even if the depth dimensions of the upper and lower subrack are different, air leakage can be prevented by the same air duct 10.

Therefore, it is not necessary to prepare several kinds of air ducts for a combination of subrack having different depth dimensions, which leads to cost reduction.

Also, even if not all subrack are installed at the beginning of installation of communication equipment and the subrack is expanded later, it is not necessary to replace the air duct due to the depth dimension of the expanded subrack, and the air duct is mounted on the rack. As it is, it can cope with the difference in the depth dimension of the subrack,
The effect is that the workability of expansion is improved.

FIG. 4 is a perspective view showing a second embodiment of the present invention, in which the same components as those in the first embodiment are designated by the same reference numerals.

The air duct 20 is composed of a front panel 11, side plates 12 on both sides, a rear panel 21, and a closing plate 14. The first embodiment is the same as the first embodiment except that a mounting hole 22 such as a screw hole formed in the rear panel 21 and a screw 23 that serves as a sliding shaft are different.

The mounting holes 22 are provided in the upper and lower portions respectively at the connecting portions with the side plates 12 on both sides, and the rotary slide groove 16 is provided.
The screw 23 fitted in the bearing portion 17 shown in FIG.

The screw 23 is inserted through the bearing portion 17, and the mounting hole 2
By engaging with 2, the back panel 21 is rotatably connected to the side plate 12.

That is, by loosening all the screws 23, for example, the lower screw 23 moves in the rotary slide groove 16 around the upper screw 23, and the back panel 13 becomes rotatable.

Therefore, when the air duct 20 is mounted on the subrack 31 having the same depth as shown in FIG. 3A described in the first embodiment, the back panel 21 is set in the vertical position and the screw 23 is attached. The left and right side plates 12 and the back panel 21 are connected and fixed by tightening.

In the case of the subrack 32 having a small depth dimension in the upper stage as shown in (b), the back panel 21 is rotated around the lower screw 23 to tighten the screw 23.
Subrack 3 with lower depth as shown in (c)
In the case of 2, the back panel 21 is rotated around the upper screw 23 to tighten the screw 23 to connect and fix the side plates 12 and the back panel 21 on both sides.

By doing so, even when the depth dimensions of the upper and lower subracks 31, 32 are different,
Air leakage can be prevented by using the same air duct 20 and rotating the back panel 21.

As described above, according to the second embodiment, in addition to the effect of the first embodiment, the back panel 21 can be easily fixed to the side plate 12 by tightening the screw 23.

FIG. 5 is a view showing a third embodiment of the present invention, showing a back panel, (a) being a perspective view and (b) being a perspective view.
Is a rear view.

Flexible closing plates 25 made of soft plastic such as polyvinyl chloride are fixed to the upper and lower sides of the back panel 24 by adhesion or the like.

Further, mounting holes 26 are vertically formed in the connecting portion of the rear panel 24 with the side plate, as in the second embodiment.

The left and right side plates (not shown) are provided with the rotary slide grooves 16 described in the first embodiment symmetrically in the vertical direction, but the vertical slide grooves 18 at both ends need not be provided.

The closing plate 14 welded to the left and right side plates
However, the flexible closing plates 25 are provided above and below the rear panel 24, but the other configurations are the same as those in the second embodiment.

In the case of such a configuration, as shown in FIG.
Even when the back panel 24 is rotationally moved as shown in FIG. 5, the flexible closing plate 25 comes into contact with the side plate and bends, and moves together with the back panel 24 while closing the gap D or the gap E. It is possible to prevent air leakage.

As described above, according to the third embodiment, the flexible closing plates 25 are fixed to the upper and lower sides of the back panel 24, so that the side plates are closed in addition to the effects of the second embodiment. Since it is not necessary to install a plate, and the vertical slide groove is not necessary, and the position for rotating and fixing the rear panel 24 is also free, so that it corresponds to many types of subrack with different depth dimensions. be able to.

[0047]

As described above, according to the present invention, since the same air duct can be used for subrack having different depth dimensions, the cost can be reduced and the air duct can be installed even when the subrack is added. It can be handled as it is, and the workability of expansion is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a detailed view of the first embodiment.

FIG. 3 is a side view showing a mounted state of the first embodiment.

FIG. 4 is a diagram showing a second embodiment of the present invention.

FIG. 5 is a diagram showing a third embodiment of the present invention.

FIG. 6 is a diagram showing the flow of air.

FIG. 7 is a diagram showing a conventional example.

FIG. 8 is a diagram showing a mounted state of a conventional air duct.

[Explanation of symbols]

10,20 Air duct 11 Front panel 12 side plates 13, 21, 24 Back panel 14,25 Block 15 Sliding shaft 16 rotation slide groove 17 Bearing 18 Vertical slide groove 22, 26 mounting holes 23 screws 31,32 Subrack

Claims (7)

[Claims] 1. An air duct mounted between subrack, comprising: a front panel, a back panel having a sliding shaft, and a bearing portion fixed to the front panel and fitted with the sliding shaft of the back panel. The left and right side plates, in which the back panel is rotatably connected by the sliding shaft and the bearing portion, are vertically symmetrical with respect to a rotary slide groove that draws an arc around the bearing portion, and the back panel is provided with a bearing portion. An air duct, comprising: a closing means for closing a gap generated when it is rotationally moved to the center. 2. An air duct mounted between the subrack, a front panel, a back panel provided with a mounting hole for engaging a screw serving as a sliding shaft, and the screw fixed to the front panel. The rear panel is rotatably connected by the screw engaging with the mounting hole and the bearing, and a rotary slide groove that draws an arc around this bearing is provided symmetrically in the vertical direction. An air duct comprising left and right side plates and a closing means for closing a gap generated when the back panel is rotationally moved around a bearing portion. 3. The air duct according to claim 2, wherein the screws are loosened to rotationally move the back panel, and the left and right side plates and the back panel are fixed by tightening the screws. 4. The air duct according to claim 1, wherein upper and lower slide grooves are formed at both ends of the rotary slide groove. 5. The closing means is a closing plate vertically symmetrically installed on the side plate on the extension line of the back panel when the back panel is rotated and vertically moved by the vertical slide groove. The air duct according to claim 4, which is characterized in that. 6. The air duct according to claim 1, wherein the closing means is a flexible closing plate fixed to the upper and lower sides of the back panel. 7. The air duct according to claim 6, wherein the flexible closing plate is made of soft plastic.